Speedy Inks Compatible Toner Cartridge Replacement for HP 504X CE250X High-Yield (Black) For use in HP: Color LaserJet CM3530, Color LaserJet CM3530fs, Color LaserJet CP3525, Color LaserJet CP3525dn, Color LaserJet CP3525n, Color LaserJet CP3525x, & Color LaserJet CP3530 Page Yield: 10,500 Color: HY Black Shelf Life: 24-36 Months The use of aftermarket replacement cartridges and supplies does not void your printer's warranty